Abstract
This paper describes measurement equipment developed for evaluating transmission characteristics of long optical transmission line. The equipment for the transmission bandwidth measurement is stabilized by coupling an oblique-cut fiber to a laser diode and by superimposing a low frequency signal onto the baseband signal. Optical loss in 5 km a transmission line can be measured using the optical time domain reflectometer with a gated photomultiplier and digital averaging. An optical fiber identifier, utilizing radiation power due to fiber bends, is also described.
| Original language | English |
|---|---|
| Pages (from-to) | 1198-1210 |
| Number of pages | 13 |
| Journal | Reports of the Electrical Communication Laboratory |
| Volume | 29 |
| Issue number | 11-12 |
| Publication status | Published - 1981 Jan 1 |
ASJC Scopus subject areas
- Engineering(all)